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    Trigger finger

    Digitalstenosing tenosynovitis; Trigger digit; Trigger finger release

    Trigger finger is when a finger or thumb gets stuck in a bent position, like you are squeezing a trigger. Once it gets “unstuck,” your finger will pop straight out, like a trigger being released.

    In severe cases the finger cannot be straightened. Surgery is needed to correct it.

    About Trigger Fingers

    Tendons connect muscles to bones. When you tighten a muscle, it pulls on the tendon, and this causes the bone to move.

    The tendons that move your finger slide through a tendon sheath (tunnel) as you bend your finger.

    • If the tunnel swells or the tendon has a bump on it or is swollen, the tendon cannot slide smoothly through the tunnel.
    • When it cannot slide smoothly, the tendon may become stuck when you try to straighten your finger.

    If you have a trigger finger, you may notice:

    • Your finger is stiff or it locks in a bent position.
    • You have painful snapping or popping when you bend and straighten your finger.
    • Your symptoms are worse in the morning.
    • You have a tender bump on the palm side of your hand at the base of your finger.

    Trigger finger can occur in both children and adults, but it is more common in people who:

    • Are over age 45 or are female
    • Have diabetes, rheumatoid arthritis, or gout
    • Do work or activities that require repeated gripping of their hands

    Trigger finger is diagnosed by your medical history and a physical exam. You will not need x-rays or lab tests.

    Treating Trigger Finger without Surgery

    In mild cases, the goal is to decrease swelling in the tunnel.

    • Your doctor may tape your finger to one of your other fingers (called “buddy tape”).
    • You may wear a splint at night for a few weeks.
    • Applying heat and ice and stretching may also be helpful.

    Your doctor may also give you a shot of a medicine called “cortisone.” The shot goes into the tunnel that the tendon goes through. This can help decrease swelling. Your doctor may try a second shot if the first one does not work.

    Surgery for Trigger Finger

    You may need surgery if your finger is locked in a bent position or does not get better with the above treatments.

    The surgery is done under local anesthesia or a nerve block. These will block pain. You will be awake during surgery.

    During the surgery:

    • Your surgeon will make a small cut in your skin just below the tunnel of your trigger finger.
    • Next, your surgeon will make a small cut in the tunnel (sheath covering the tendon) and then ask you to move your finger.
    • Once you can move your finger, your surgeon will close your skin with stitches and put compression or tight bandage on your hand.

    After surgery:

    • Keep the bandage wrapped around your hand on for 48 hours. After that you can use a simple bandage, like a Band-Aid.
    • After about 2 weeks your stitches will be removed.
    • You can use your finger normally once it has healed.

    When to Call the Doctor

    If you notice signs of infection call your surgeon right away. Some signs of infection are:

    • Redness in your incision or hand
    • Swelling or warmth in your incision or hand
    • Yellow or green drainage from the incision
    • Hand pain or discomfort
    • Fever

    If your trigger finger returns, call your surgeon. You may need another surgery.

    References

    Tigger finger. In: Ferri FF, ed. Ferri's Clinical Advisor 2012.1st ed. Philadelphia, Pa: Mosby Elsevier; 2011:1041.

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            Tests for Trigger finger

              Review Date: 6/28/2012

              Reviewed By: C. Benjamin Ma, MD, Assistant Professor, Chief, Sports Medicine and Shoulder Service, UCSF Department of Orthopaedic Surgery. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.

              The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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